EP 3345459 A1 20180711 - DIMMABLE ANALOG AC CIRCUIT
Title (en)
DIMMABLE ANALOG AC CIRCUIT
Title (de)
DIMMBARER ANALOGER WECHSELSTROMKREIS
Title (fr)
CIRCUIT CA ANALOGIQUE À INTENSITÉ VARIABLE
Publication
Application
Priority
- US 201562212015 P 20150831
- US 2016049433 W 20160830
Abstract (en)
[origin: US2017064781A1] An analog AC circuit for light emitting diode (LED) groups that provides continuously emitted light through a dimming process from 100% relative light output to 5% of relative light output. The analog AC circuit utilizes ancillary circuitry that bypasses a first series interconnection of a first LED group and presents a capacitor electrically connected to an ancillary transistor to provide constant current at above a current threshold to cause the first LED group to continuously emit light even through a dimming process.
IPC 8 full level
H05B 44/00 (2022.01); F21S 2/00 (2016.01); H05B 37/02 (2006.01); H05B 39/06 (2006.01)
CPC (source: EP US)
A01G 7/045 (2013.01 - EP US); H01L 33/62 (2013.01 - US); H05B 45/10 (2020.01 - EP US); H05B 45/48 (2020.01 - EP US); H05B 47/24 (2020.01 - EP); Y02P 60/14 (2015.11 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2017064781 A1 20170302; US 9730288 B2 20170808; CN 108370623 A 20180803; EP 3345459 A1 20180711; EP 3345459 A4 20190320; WO 2017040495 A1 20170309
DOCDB simple family (application)
US 201615251548 A 20160830; CN 201680053170 A 20160830; EP 16842804 A 20160830; US 2016049433 W 20160830